same point Cartesian to have 1 representation for a point that supports different ways of getting information out, but has gathered within it, a method or a function for dealing with things like how do I know if it's the same point or not.
还有,这是一个比较极坐标的点,是否相同的不同的方法,但是这开始成了一个麻烦事儿了,我真正想要做的事情是,创建一个能支持不同的方式,输出已经收集的信息的点的表示。
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